/// <summary>
/// 添加临时直接点
/// </summary>
/// <param name="zk"></param>
/// <param name="path"></param>
/// <param name="data"></param>
public static void AddTmpChildNode(this ZooKeeper.Net.ZooKeeper zk, string path, byte[] data)
{
//添加监控时同时增加临时节点，表明客户端已经下载过节点数据，删除节点部分工作由服务端进行
string nodePath = string.Format("{0}/{1}", path, Guid.NewGuid());
zk.Create(nodePath, data, Ids.OPEN_ACL_UNSAFE, CreateMode.Ephemeral);//注意使用的是临时节点
}
/// <summary>
/// 移除临时子节点，表明该节点目前已更新，客户端需要重新下载
/// </summary>
/// <param name="zk"></param>
/// <param name="path"></param>
public static void RemoveTmpChildNode(this ZooKeeper.Net.ZooKeeper zk, string path)
{
var childs = zk.GetChildren(path, false);
if (childs != null && childs.Any())
{
foreach (var child in childs)
{
zk.Delete(string.Format("{0}/{1}", path, child), -1);
}
}
}
/// <summary>
///
/// </summary>
private void Connect()
{
latch = new CountDownLatch(1);
ZooKeeper = new ZooKeeper.Net.ZooKeeper(_connectionString, TimeSpan.FromMilliseconds(_sessionTimeOut), this);
try
{
latch.Await(_connectTimeOut);
}
catch (Exception)
{
//Connect TimeOut
}
}
/// <summary>
///
/// </summary>
/// <param name="zk"></param>
/// <param name="path"></param>
/// <param name="data"></param>
/// <param name="acl"></param>
/// <param name="createMode"></param>
/// <returns></returns>
public static string CreateWithPath(this ZooKeeper.Net.ZooKeeper zk, string path, byte[] data, IEnumerable <ACL> acl, CreateMode createMode)
{
var tmp = path.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
if (path.Length > 1)
{
string tmpPath = "";
for (var i = 0; i < tmp.Length - 1; i++)
{
tmpPath += "/" + tmp[i];
if (zk.Exists(tmpPath, false) == null)
{
zk.Create(tmpPath, null, acl, createMode);//临时节点目前不允许存在子节点，所以这里可能会有问题
}
}
}
return(zk.Create(path, data, acl, createMode));
}
/// <summary>
/// Initializes a new instance of the <see cref="ClientConnection"/> class.
/// </summary>
/// <param name="hosts">The hosts.</param>
/// <param name="sessionTimeout">The session timeout.</param>
/// <param name="zooKeeper">The zoo keeper.</param>
/// <param name="watcher">The watch manager.</param>
/// <param name="sessionId">The session id.</param>
/// <param name="sessionPasswd">The session passwd.</param>
public ClientConnection(string hosts, TimeSpan sessionTimeout, ZooKeeper zooKeeper, ZKWatchManager watcher, long sessionId, byte[] sessionPasswd)
: this(hosts, sessionTimeout, zooKeeper, watcher, 0, new byte[16], DefaultConnectTimeout)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="ClientConnection"/> class.
/// </summary>
/// <param name="connectionString">The connection string.</param>
/// <param name="sessionTimeout">The session timeout.</param>
/// <param name="zooKeeper">The zoo keeper.</param>
/// <param name="watcher">The watch manager.</param>
/// <param name="connectTimeout">Connection Timeout.</param>
public ClientConnection(string connectionString, TimeSpan sessionTimeout, ZooKeeper zooKeeper, ZKWatchManager watcher, TimeSpan connectTimeout) :
this(connectionString, sessionTimeout, zooKeeper, watcher, 0, new byte[16], connectTimeout)
{
}
/**
* Make sure all the nodes in the path are created. NOTE: Unlike File.mkdirs(), Zookeeper doesn't distinguish
* between directories and files. So, every node in the path is created. The data for each node is an empty blob
*
* @param zookeeper the client
* @param path path to ensure
* @throws InterruptedException thread interruption
* @throws org.apache.zookeeper.KeeperException
* Zookeeper errors
*/
public static void Mkdirs(ZooKeeper zookeeper, String path)
{
Mkdirs(zookeeper, path, true);
}